I am re-linking Prof. Glenn Reynold's Ham Sandwich Nation: Due Process When Everything is a Crime. The pdf article is via that link.
It's a major issue. Everybody is a criminal. I am willing to guarantee it. Nobody has read the million pages of federal regs and codes, and no citizen can understand them. A defendant is anybody the feds or the DA want to be one. Nobody is innocent, no matter how hard they try to be.